Google what size you need if you don't already know. I have only used kenwood and pioneer for front and back. Went with 2 kicker 10s and 1 pioneer 12 for my bass. 4 tweeters (1 in each front door and 1 on either side of windshield. ) oh yeah, I started with a kenwood1000w but when it messed up I got a pioneer 1600w. Wish you could hear her sound off. Its amazing!